- HD 1080
- Runtime: 102m.
- Status: Released
- 2
- Languages: en
- Country: United Kingdom, United States of America
- Director: Walter Grauman
- Stars: Cliff Robertson, George Chakiris, Maria Perschy, Harry Andrews, Donald Houston
- keywords: norway, air raid, norwegian resistance
- Production_studio: The Mirisch Company
- Slogan: The greatest adventure since men fought on earth - or flew over it!
- The 633 Squadron is featured in the top rankings of 1964
- #99 in Top Drama Movies of 1964
- #19 in Top War Movies of 1964
When Norwegian resistance leader Lieutenant Erik Bergman reports the location of a German V-2 rocket fuel plant, the Royal Air Force's 633 Squadron is assigned the mission to destroy it. The plant is in a seemingly-impregnable location beneath an overhanging cliff at the end of a long, narrow fjord lined with anti-aircraft guns. The only way to destroy the plant is by collapsing the cliff on top of it.